The TP-Link TL-MR3420 is a 3G/4G wireless N router that allows users to share a 3G/4G mobile broadband connection with family and friends. It has a maximum wireless speed of 300Mbps and four Ethernet ports for wired connections. The router also features a USB port for connecting a 3G/4G modem or flash drive. It has easy network management tools and supports WPA/WPA2 encryption for increased security. The TL-MR3420 is compatible with most 3G/4G USB modems and is ideal for home or small office use.

The TL-MR3420 is a router manufactured by the company TP-Link that allows multiple devices to connect to a network and communicate with each other. It works by receiving data packets from devices and forwarding them to their intended destination. The router is assigned a unique IP address , which serves as its identifier on the network.

To access the router's settings and configure its functions, users can log in using a web browser and their and . Once logged in, users can customize various settings such as network name, password, and security protocols. They can also set up parental controls, prioritize bandwidth usage, and monitor network activity.